# Harmonic Boundary Series

The table below is an example for harmonic constituents for Trakhuc estuary.

Name | Speed(deg/hr) | Amplitude (m) | Phase (s) |
---|---|---|---|

Q1 | 13.3987 | 0.04 | 126.073 |

O1 | 13.943 | 0.261 | 146.432 |

P1 | 14.9589 | 0.097 | 182.577 |

K1 | 15.0411 | 0.293 | 185.991 |

N2 | 28.4397 | 0.04 | 59.376 |

M2 | 28.9841 | 0.185 | 75.861 |

S2 | 30 | 0.072 | 114.865 |

K2 | 30.0821 | 0.025 | 95.187 |

STEPS FOR ADDING INPUT HARMONIC CONSTITUENTS TABLE

- Click to the E button which is next to Harmonics (See Figure 1)
- Enter the
*Number of Series*, which is 1 for this case (see Figure 2) - Enter the
*Title of Series,*as "Tides" - Enter the
*Number of Harmonic Constituents to Use,*in the case there are 8. - Copy the tidal constituent values from above table into the form.
- You may want to click
*View*button in the Figure 2 to see the tidal timeseries plot as shown in Figure 3 - Click
*Close and Return*to exit the plot - Click
*OK*button in the Figure 2 to finish.

**Figure 1 Assigning tidal boundary conditions.**

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**Figure 2 Preparing the harmonic and tidal boundary series.**

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**Figure 3 Tides Series Plot.**

to assign tides to the open boundary cells, steps are introduced in section 4.3.2 (Build a 3D Coastal Model (Level 2 Step-by-Step Guidance). However, instead of choosing tidal series for *Pressure*, the user selects the series for *Harmonic* as shown in Figure 4.

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**Figure 4 Assign tides boundary.**